Crawl Space Repair - Crawlspace During Initial Inspection
This crawlspace has efflorescence, or dried water, all along its brick walls. It's evidence that water is getting in through the brick. On the ceiling, there's hanging insulation. It could be sagging slightly for a multitude of reasons, but the most likely is water. Water is harmful to insulation because once it gets into the insulation it will make it heavy and it will start to fall down. Not only will the basement no longer have insulation, but it has also become a nesting ground for bugs and the like.